Doubt from electrostatics

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Is it KQdl/2πr^(3).

It is kQdl/2πr^3

Post your solution


Plz help Mayank, Tanmay sir

Thank you sir, for telling your approach

But if we assume all to be zero small equation failed.

It's not that complex, the electric field at the centre of ring is zero. That means that the electric field due to small part dl cancels the electric field due to the rest of the ring. So, the electric field due to the dl part comes out to be what @Abhishek_2020_5 and @Aman_2020_2 said.

I think I asked electric field at point people due to ring-dl part

Most welcome...i have just tried